The science of the perfect swing, by P. Dewhurst

Berkshire, Frank

doi:10.1080/00107514.2017.1344319

Cited by 7 publications

(17 citation statements)

References 0 publications

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“…It is not obvious why this is the case, but it indicates that there may be enhanced losses in the thin, dimpled cover of the golf ball, or enhanced tangential friction between the cover and the inner core. The significance of the tangential coefficient of restitution in generating golf ball spin is discussed in considerable detail by Dewhurst [6].…”

Section: Resultsmentioning

confidence: 99%

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Backward bounce of a spinning ball

Cross

2018

Eur. J. Phys.

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A ball that is incident on a surface with backspin is likely to bounce backwards if it is incident at an angle near the normal. The effect is common in many ball sports, including cricket, tennis, baseball, golf, billiards etc. A particularly impressive feat in golf is to land the ball past the hole and let it bounce back towards the hole. The ball may even bounce forward several times before it bounces backward. The physics of a backward bounce is described in the present paper, including several experiments that would be suitable for a student exercise on the bounce of a spinning ball.

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Section: Resultsmentioning

confidence: 99%

“…That is usually how professional golfers manage to land the ball beyond the hole and get it to spin back towards the hole. The amount of backspin in such a shot can be as large as 1200 rad s −1 (11 500 rpm) in golf [3,6].…”

Section: Discussionmentioning

confidence: 99%

Backward bounce of a spinning ball

Cross

2018

Eur. J. Phys.

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“…At the same time, any values on either side of the lower or upper boundary are likely to result in reductions in overall carry distance of the ball. Of note, average spin rates of 2,685 and 2,682 rpm have been recorded for PGA Tour and LPGA Tour players, respectively (13). Finally, clubhead impact factors have also been associated with the spin rate.…”

Section: A Study By Betzler Et Al (2) Analyzed the Effects Of Clubhea...mentioning

confidence: 89%

Monitoring Performance in Golf: More Than Just Clubhead Speed

Brennan

Ehlert²,

Wells³

et al. 2023

Strength &Amp; Conditioning Journal

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In the golfing literature, clubhead speed is the most commonly reported metric to assess golf performance. However, a rise in the availability and use of launch monitor technologies in recent years has gathered a wide range of metrics for any given golf shot. In addition, with distance and dispersion (accuracy) being the outcome measures of any given shot and of utmost importance in golf, launch monitors can provide an in-depth understanding of how a golf shot has been achieved. To date, very limited information offers practitioners working in golf an understanding of how these metrics interlink and relate to the outcomes of any given shot. Thus, we have created a deterministic model for the golf shot and provided an overview of the relationship between these launch monitor metrics and the outcome measures of distance and accuracy. This information will give practitioners a more detailed understanding of how golf shots have been achieved and help provide more methodical means of monitoring golf performance and providing feedback to players.

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“…1 . Equations ( 5) and (6) show that the effect of finite, positive D is to reduce the rebound spin and speed below the ideal values where D=0. An interesting special case arises when S 1 =1, in which case equations ( 5) and (6) give w w…”

Section: Oblique Bounce Modelmentioning

confidence: 99%

“…There is much more physics in a bouncing ball than meets the eye. The impact of a sphere with a flat surface has been studied by many authors, mainly in relation to the physics of sport [1][2][3][4][5][6] and the physics of granular particles [7][8][9][10][11][12]. If the sphere is incident in a direction normal to the surface, then interest usually centres on the impact duration and on the normal coefficient of restitution, and in attempts to explain the observed results in terms of material properties.…”

Section: Introductionmentioning

confidence: 99%

Oblique impact of a spinning rubber ball

Cross¹

2019

Eur. J. Phys.

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Measurements are presented on the oblique impact of a hollow rubber ball incident with spin on a polished granite surface. When incident with substantial backspin there is a large decrease in the horizontal ball speed and a large change in the spin of the ball. When incident with substantial topspin, there is only a small decrease in the horizontal speed and only a small change in ball spin. The impulse due to the friction force is therefore a strong function of the incident spin. The measured impulse determines if and when a transition from a sliding to a grip phase occurs. The line of action of the normal reaction force acts behind the centre of mass when the ball is incident with backspin, and ahead of the centre of mass when the ball is incident without spin or with topspin.

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The science of the perfect swing, by P. Dewhurst

Cited by 7 publications

References 0 publications

Backward bounce of a spinning ball

Backward bounce of a spinning ball

Monitoring Performance in Golf: More Than Just Clubhead Speed

Oblique impact of a spinning rubber ball

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